Patents for C09B 55 - Azomethine dyes (1,049)
02/1978
02/07/1978US4072525 Silver halide photographic material containing two-equivalent color coupler
01/1978
01/31/1978US4071365 Silver halide emulsion containing two-equivalent yellow dye-forming coupler
01/10/1978US4067889 Disperse dyestuffs
12/1977
12/20/1977US4064349 Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use
11/1977
11/22/1977US4059447 Photographic material containing oxazolinone-2 couplers
10/1977
10/04/1977US4052374 Unsymmetrical 1:2-chromium complexes containing an azo compound and an azomethine compound
10/04/1977US4052212 Photographic silver halide emulsion containing 2-equivalent cyan coupler
09/1977
09/27/1977US4051119 Azomethine dyes derived from an o-hydroxy aromatic aldehyde and a 2-aminopyridine
09/06/1977US4046575 Color photographic material containing 2-equivalent yellow couplers
08/1977
08/30/1977US4045424 Salt of a sulfonic acid substituted 1:2 metal complex dye with a basic dye and an amine
08/23/1977US4044036 Metal complexes of bis-azomethines from hydroxy-aldehydes and alkylene diamines
08/16/1977US4042611 Dyes and pigments for plastics, fibers, and paints
08/16/1977US4042582 Mixtures of disazomethine and monoazo methine compounds, process for their preparation and their use as pigments
08/16/1977US4042322 Process for dyeing anionically modified synthetic fiber materials
07/1977
07/26/1977US4038241 Polymer compositions containing a bisazomethine pigment
07/05/1977US4033942 Chromium complex dye, including azo and azo methine dye compounds
06/1977
06/28/1977US4032347 2-equivalent acylacetamide yellow forming couplers with 2,6-dioxo-7-purinyl coupling off group
06/28/1977US4032345 Silver halide materials containing photographic color couplers with isothiocyanato groups
06/21/1977US4031130 Dialkyl ketone, dialkylcarbonate
06/14/1977US4029508 Photography
05/1977
05/24/1977US4025089 Azomethine dyes
05/10/1977US4022620 Silver halide, amine
04/1977
04/12/1977US4017476 Preparation of finely divided styrene-divinylbenzene organic pigments
03/1977
03/15/1977US4012259 Dicarbonyl methylene group on a 2,5-dioxo-1-imidazolidine is a yellow coupler
03/15/1977US4012258 Poly-fluoro-alkyl magenta or cyan coupler
03/15/1977US4012193 Bisazomethine dyes for metal-modified polyolefins
03/08/1977US4011352 Dye precursors
02/1977
02/15/1977US4008225 Process for the manufacture of bis-azomethine metal complex colorants
01/1977
01/11/1977US4002619 Coumarine dyestuffs of the dispersion series
01/11/1977US4002616 Polyesters
12/1976
12/21/1976US3998641 A 2-cyclotetramethylene sulfone-containing beta-ketoacetanilide
11/1976
11/09/1976US3990896 Yellow color forming couplers with 5-alkylidine-3-hydantoinyl groups
10/1976
10/26/1976US3988323 Metal complexes of bishydrazides
10/05/1976US3984432 Color photographic recording material
09/1976
09/14/1976US3980430 Cationic dye, halogenated hydrocarbon
08/1976
08/31/1976US3978037 Polyamides
08/10/1976US3974149 Azomethine pigments
08/10/1976US3973968 Photographic acyl acetanilide color couplers with 2,5-dioxo-1-imidazolidinyl coupling off groups
07/1976
07/20/1976US3970649 Bisazomethine metal complexes
06/1976
06/29/1976US3966475 Photographic silver halide emulsions containing acylacetanilide color couplers
06/15/1976US3963708 Bis-azomethine metal complex colorants from hydroxycoumarin derivatives or hydroxychromone derivatives
06/08/1976US3962221 Preparation of disperse bisanil dyes derived from diaminomaleonitrile
06/08/1976US3962220 One-step, aromatic aldehydes, acetic acid
04/1976
04/20/1976US3952009 Preparation of azomethines by reacting a 4,4-dihalo-5-pyrazolone with aromatic primary amines
03/1976
03/30/1976US3947516 2-hydroxy-naphthalene-3-carboxylic acid arylide
03/02/1976US3941816 Stabilized oxichromic compounds
02/1976
02/17/1976US3939194 Bis-2-azomethine pigments, process for their manufacture and their use
01/1976
01/27/1976US3935263 Oxichromic compounds, stabilized oxichromic compounds and processes for preparing same
01/27/1976US3935262 Reduced azomethine linkages
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